package com.demo.service;

public class UserServiceImpl implements UserService {

    public void add() {
        System.out.println("新增一个");
    }

    public void delete() {
        System.out.println("删除一个");
    }

    public void update() {

        System.out.println("更新一个");
    }

    public void select() {
        System.out.println("查询一个");
    }

}